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2003 Rav 4 Good battery I turn the key to start nothing, no lights no radio When I hook up a charger the horn beeps, Is it the anti-theft? and how do I reset?

Posted by jguthrie6 on


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Carl Rock

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Not sure how you determined "good" battery.

Check battery with a DMM, all lights and accessories off and no charger. A reading less than 12.3 VDC indicates failing or under charged battery.

Posted on Jan 15, 2020


5 Related Answers

short shadey

jeff r

  • 421 Answers

SOURCE: Toyota RAV 4 1.8 A - engine doesn't start after battery exchange

may sound like a dumb question but you didnt by chance hook up the battery or jumpstart the car with polarity reversed by accident at some point during this process? i would check all the underhood main fuses and interior fuses as well, what is the condition of the battery post clamps? if they are badly corroded be sure to clean them very well and wash them with a baking soda and water solution im thinking one of the cables or smaller wires that hook up at the battery is broken or possibly some freak accident happend and the computers need to be flashed at a dealer. either way i wish you luck please rate -jeff

Posted on Sep 01, 2008



  • 58 Answers

SOURCE: my 2005 honda odyssey anti theft activated when my

Not trying to steal your solution, but trying to clean up the unanswered page:
There are two possible answers here:
The simple one:  Use your remote control's "unlock" button to reset the anti-theft system.
or a more comlex one that seems to work: (From the original post)"I found out that you remove the horn fuse, shut the doors, put the key in and unlock it two times then put the fuse back resets the anti theft..."

Posted on Apr 21, 2009

michigan man

edgar walker

  • 3533 Answers

SOURCE: 2001 Explorer; anti theft light steady; no power to car

take the positive side of the battery off for about 3 seconds and then put it back on to see if this will reset the security code

Posted on Apr 26, 2009

Teddi B

  • 232 Answers

SOURCE: anti theft dash light is blinking on my 1998 rodeo

I'm assuming its an original alarm or system that came from factory or dealer. When the light blinks is because the alarm is activated. Look underneath the radio the alarm brain might be there. There will be a label on it saying alarm or security system etc. Disconnect the harness to it and try operating your vehicle.

Posted on May 06, 2009



  • 3113 Answers

SOURCE: Starting disabled due to anti-theft system

Replace ignition lock cylinder and chip key. The wires have broken.

Posted on May 23, 2009

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What fuse go to the theft system on a 2005 chevy

Theft light on car won't start , hook a battery charger up to your car to maintain a good charge . Then turn ignition to on position , do not crank it over leave in that position for ten minutes then turn to off and repeat this cycle two more times .
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if the security light is flashing than the anti theft is active. The anti theft shuts down the injectors and will not let the vehicle start.

You'll need a battery charger to do this. Hook up the battery charger to the battery.

Place the key in the igniton and attempt to start. Let the key return to the run postion and leave it there untill the light stops flashing. Turn the key off

Turn the key on (do not try to start) and wait for the light to stop flashing again.

turn the key off and then try to start the vehicle.

You can google search "resetting gm security" and find this info as well.

I’m happy to assist further over the phone at

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Anti theft activated-now car won't start and radio won't work. Radio won't take radio code and car cranks but doesn't start, horn blares, and headlights flash. I don't have the other code for the anti...

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The engine will crank but wont turn over. anti theft light blinking. can this be reset?

i have a similar problem with a MPV 2001. After about a 1/2 sec from turning the key on, the horn will beep and the flasher go on, can will turn over, but it won't start. any ideas?

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